Three-dimensional display with directional beam splitter array

Abstract

Multi-view three-dimensional (3-D) displays using directional beam splitter array were proposed to achieve a perfect 3-D perception with low cross-talk. The multi-direction collimated light may project different images to different viewing zones to form the multi-view autostereoscopic display. Furthermore, a high resolution 3-D display can be realized with a sequential beam splitter array and a sequential liquid crystal display. By optimization, the cross-talk of the directional beam splitter backlight system was lowered to 5% to improve the perception of the 3-D displays.

Inverse designed achromatic flat lens operating in the ultraviolet

“…We have also successfully extended this concept to demonstrate other functionalities apart from achromaticity, where we have designed MDLs with a Field of View (FOV) up to 50˚ for wideangle imaging and MDLs to render a Depth of Focus (DOF) imaging of up to 6 meters in the NIR [28]. Other noteworthy works include the design of MDLs to highlight broadband holograms enabling multi-plane image projection [29] as well as in holographic displays for AR and VR applications [30,31]. In addition to this, the usefulness of MDLs in the construction of solar cells for efficient solar energy harvesting has also recently emerged [32][33][34].…”

6.1: Autostereoscopic Display with a Multidirectional Backlight System and an Eye tracker

“…Meanwhile, it only generated two viewing zones, which would limit the viewer's movement. Recently, Lu et al [6] employed a directional beam splitter array to achieve a low crosstalk multiview 3D display. Nonetheless, the proposed timesequential 3D display system formed four viewing zones, motion parallax cannot be guaranteed.…”

A polarization modulated directional backlight autostereoscopic display

“…An autostereoscopy can display realistic virtual scenes or objects, hence attracting a great deal of attention in recent years. [1][2][3][4][5][6] At present, parallax three-dimensional (3D) display tends to be suitable for practical application as the technology is constantly improving and as autostereoscopy is compatible to existing 3D display contents. 7,8 The parallax 3D display uses the parallax barrier, [9][10][11][12][13] cylindrical lens grating, [14][15][16] or Fresnel lens 17,18 as the splitting elements, and a viewer is able to view the parallax images by blocking or refracting the images of a display, notably, a liquid crystal display (LCD).…”